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Fix DnD of files from OS Explorer into Tree Views #12409

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merged 2 commits into from
Apr 27, 2023

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@tsmaeder tsmaeder commented Apr 13, 2023

What it does

Fixes dragging files from the OS explorer into tree views contributed via VS Code API. The problem was caused by a wrong check in the dragOver handler in the tree view (https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/files). Also discovered that the localDataTransfer used to transfer objects within the plugin host was not cleared when first dragging locally, then from outside the Theia application.

Contributed on behalf of STMicroelectronics

Fixes #12404

How to test

We can reuse the test procedure from #12065.

Review checklist

Reminder for reviewers

Also clears "local transfers" when drag ends, preventing the items from
a previous D&D operation to spill over to the next one.

Contributed on behalf of STMicroelectronics

Signed-off-by: Thomas Mäder <[email protected]>
@tsmaeder tsmaeder force-pushed the 12404_fix_files_check branch from 6d40686 to d2a73c0 Compare April 13, 2023 09:11
@msujew msujew added tree issues related to the tree (ex: tree widget) dnd issues related to drag & drop labels Apr 16, 2023
@tsmaeder tsmaeder requested a review from tortmayr April 20, 2023 10:51
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👍🏼 Code looks good to me and I can confirm that DnD of files from the OS Explorer works as expected. Tested on Windows and Ubuntu.

@tortmayr tortmayr merged commit a84ea35 into eclipse-theia:master Apr 27, 2023
@vince-fugnitto vince-fugnitto added this to the 1.37.0 milestone Apr 27, 2023
jonah-iden pushed a commit to jonah-iden/theia that referenced this pull request May 2, 2023
…lipse-theia#12409)

Also clears "local transfers" when drag ends, preventing the items from
a previous D&D operation to spill over to the next one.

Contributed on behalf of STMicroelectronics

Signed-off-by: Thomas Mäder <[email protected]>
Co-authored-by: Tobias Ortmayr <[email protected]>
@tsmaeder tsmaeder mentioned this pull request May 11, 2023
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dnd issues related to drag & drop tree issues related to the tree (ex: tree widget)
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Cannot DragAndDrop Files into TreeView
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